July 24, 2026
- msaRAT, a new Rust backdoor from the Chaos ransomware crew, tunnels C2 through headless Chrome/Edge and WebRTC. Cisco Talos found it abusing the Chrome DevTools Protocol and WebRTC DataChannels, ChaCha20-Poly1305-encrypting payloads, and hiding behind Twilio TURN and Cloudflare Workers to blend into legitimate traffic. Talos, BleepingComputer. · Threat Activity